My question was why hydrogen can be positively and negatively charged. I really wanted to know because every book and website I checked all said that hydrogen was a gas. However, hydrogen was on the left side of the periodic table, where most metals are, which confused me a lot. So I had lots of ideas about it, from it being able to gain/lose electrons to even out shells to thinking hydrogen was a shape-shifter, which sounds a bit insane. So I found an app that explains all the properties of the elements and extra info. It told me that hydrogen normally loses an electron to have a positive charge, but sometimes it can gain an electron to max its first shell at 2 electrons, gaining a negative charge.

So it was my first hypothesis that was worked. Hydrogen is a gas that normally has a positive charge, which is also different for a gas, but sometimes it gains an electron to become negative.